Portable kinematographic camera.



0. DE PROSZYNSKI.

PORTABLE KINEMATOGRAPHIG CAMERA.

APPLICATION FILED MAY 10, 1910.

Patented Feb. 11, 1913.

2 SHEETS-SHEET 1.

C. DE PROSZYNSKI.

PORTABLE KINEMATOGRAPHIG CAMERA.

APPLICATION FILED MAY 10, 1910.

. 1,052,956 I Patented Feb. 11, 1913 2 snnmswinnm z.

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A UNITED STATES CASIMIB DE PROSZYNSKI, OF WARSAW, RUSSIA.

PATENT. OFFICE."

PORTABLE KINEMATOGRAPHIQ CAMERA.

Specification of letters Patent.

Patented Feb. 11, 1913.

Application filed May 10, 1910. Serial No. 560,475.

To all whom it may concern:

Be it known that I, GASIMIR DE PRoszYN- sin, a subject of the Emperor ofRussia, and resident of Warsaw, Russia, have invented certain new anduseful Improvements in I camera may beeconveniently supported in thehands of the operator, that the latter may be free tofollow the subject.This involves the provision of means for steadying the mechanism, so asto eliminate vibration.

The object of my invention is to provide a portable kinematographiccamera to enable the operator to follow the subject in any direction andto provide means for preventing vibration of the mechanism when theoperator vertically or horizontally Y changes the position of thecamera.

The invention also compre'hends improvements in other features, whichwill be here inafter described and out in the claims.

In the drawings :Figure 1 is a view illustrating the camera in use; Fig.2 is a perspective view of the camera, parts being particularly pointedomitted; Fig. 3 is a vertical section on the line 33, of Fig. 6. Fig.4is a side elevation, the casing being shown in section; Fig. 5 is a sideelevation looking from the opposite side of the camera, the casing beingshown in section; Fig. 6 is a horizontal section on the line 5-5 of Fig..5; Fig. 7 is a detail in elevation of the pressure regulator; Fig. 8 isa vertical; central section of the same on the line 8-8 of Fig. 7.

1 indicates a casing provided with a ver-- tical partition 2, toform twocompartments I 3 and 4. The compartments 3 and 4 are closed by hingeddoors 5 and 6, as shown best in Fig. 3. a

Kinematographic mechanism of appropriate construction, conventionallyind1- cated in the'drawings, is mounted inthe compartment 3..mechanism'inchides a guide 6 through which the film a, passes and theusual sprockets 7 to engage perforations in the film. On a shaft 8supported by the partition 2, and extending into the compartment? is afilm supply reel 9, and a take up reel 10. The film passes fromreel. 9up, and over a guide 11 and around sprocket 7 and then through the guide6. The opposite end of the film is wound on the take up reel 10 which isin alinement with a lens l2,'located in the front of the casing. Thespecific arrangement of the reels, and their mounting has been dividedfrom this application, and claimed in an application filed Nov. 25,1912, Serial No. 733,428. A shutter 13 is mounted in the front portionof the casing and is conveniently arranged so as to operate between theguide 6 and the lens 12, as shown in Fig. 6.

The shutter 13 is mounted on a shaft 14 which is operated as at 15, bythe power 16, mounted in the'lower portion of the casing 1. A gyroscope17, is mounted in the casing and comprises a weighted disk 18, securedto a shaft 19. On the shaft 19, is a small grooved pulley 20, aroundwhich and a much larger pulley 21, on the shutter shaft 14, passes abelt 2 V A. motor 23, of appropriate type is supported in the fore artof the compartment 4 and includes a piston rod 24, and p tman 25.The'pitman rod is pivoted to a crank 26, on" the power shaft 16, wherebyto rotate the latter in the operation of the camera.

A- number of intercommunicating compressed air tubes 27 are located inthe compartment- 4, and constitute a reservolr. Compressed air is forcedinto these tubes by a pum or other suitable means, a valved inlet nipple29, being provided forthls purpose.- -A pipe 30 leads from the reservoirto a pressure reducing device 31. This device includes a chamber32'supported 1n a frame 33 fastened in thecasing 1'. The outer ends witha valve'seat 38 formed in the frame 33 of the frame 33,-are connected bya flexible 1' and from the valve extends a stem 39. The 3 valve stempasses through the chamber 32 and the nut'36 and is rigidly secured tothe outer portion ofthe chamber 36 as indicated pass into at 40, whileon its outer end is a flange. 41

with which the nut 36 cooperates.

The pipe 30, enters a chamber 42, which also communicates through thevalve seat 38, with the chamber 32. A pipe 43, extends from the chamber32 to the cylinder of the motor 23.

The pressure in thereservoir is of course much greater than thatrequired to operate the motor, hence it is necessary to provide thepressure reducing device to prevent as much as possible the liability ofloss of pressure and to cause the motor to be uniformly operated. Whenthe nut 36, is screwed inwardly toward the chamber 32, pressure on theflange 41 is removed and the flexible end wall of the chamber 32 willassume its normal condition, and as the valve stem is secured to saidwall, the valve-will be removed from its seat and the air from thereservoir will the chamber 32. When'sufiicient air to operate the motorenters the chamber 32, the outer end wall will flex and automatl'callyclose the valveuntil the pressure in chamber 32 is reduced when thevalve.

will again automatically open.

If it be desired to cut off the air from the motor, which is desirablewhen the camera is not used, the nut 36, is screwed outwardly againstthe flange 41, which closes the valve 37 on its seat and cuts off theair supply.

The flexible plate 34 serves to brace and support the valve stem and thereceptacle 32 and it also permits ofthe stem being drawn outsufliciently to insure of the valve closing tightly on its seat when thenut contacts with the flange 41. i

A pointer 45, and a scale .46, serve as a vmeans for a visibleindication of the pres- .sure in the chamber 32.

On the power shaft 16, is a grooved pulley 47 around which and a similarpulley 48, on the shaft 8, passes a belt 49, to rotate the filmreceiving reel 10.

49 indicates a stopping and starting button, the inner end' of which isprovided with a star wheel 50, normally held close to the inner surfaceof the door 5, by a spring 51. The star wheel .is located adjacent acrank pin 52, on the crank shaft so that upon applying pressure to thebutton and also imparting to it a slight rotary motion, the star wheelwill engage the crank pin and rotate the power shaft and start themotor. Such an arrangement is necessary owing to the fact that thepitman 25 and crank will be on a dead center when the motor is: stooped?j. To sto the motor the operatorsimply, pushes the button 49 inwardly tobring the "star wheel into engagement. with the crank pin of, the crank52 On top of the rear end of-thecamera isoeaeae is a field finder 55which with the sight opening serves as a means for sighting the subjectbeing photographed.

The field finder comprises an open frame with cross bars extendingacross the same. The opening 54, is coincident with the point where thebars of the field finder cross and as the area of the frame isproportioned to the exposed portion of the film, any view seen throughthe sight opening and the frame will correspondingly appear on the filmwhen the shutter is operated.

In operation the rear end of the camera rests on the chest of theoperator and the forward end is supported by the hands, as clearlyindicated in Fig. 1. The subject to be photo-graphed is located by theoperator through the medium of sight opening and the field finder, andwith the fingers "of one hand the button 49 is manipulated to start themotor. The subject may make a wide detour, but as the camera is held bythe operator, and as the latter is free to move in any direction theposition of the subject is of little consequence. If perchance, thesubject should suddenly run up or down a hill, the operator canconveniently tilt or his convenience. In fact, because of the entireoperating mechanism being portable and in such compact formjand thepower means being so arranged that it can be controlled by the fingers,photographs of animated subjects can be made under the mostdiflicultconditions, and under circumstances which heretofore have beenimpossible to overcome.

The operator in making a picture of an animated subject is naturallynervous, and aside from this condition, there is always a certain amountof vibration of a camera when held in the hands, which of course, willreflect on the fllm, and when the pictures are reproduced on a screenthis slight vibration is greatly magnified, and is decidedlyobjectionable. But I have found that this difliculty is readily overcomeby providing the gyroscope to steady the cam-' era while making thephotograph. The weighted wheel rapidly rotates and the gyroscope effectremoves the vibration during the period of exposure, even if following asubject under extremely diflicult circumstances.

As the forward end of the camera is most.

likely a to vibrate, I find it advisable to locate the gyroscope as nearcasing as possible.

As my invention relates to a portable kinematographic camera providedwith a fluid motor for operating the mechanism while photographing, Ihave not deemed itnecessary to speci cally illustrate the 'details ofconstruction of the kinematographic me hanism, as it is evident anyappropriate,

turn the camera, to suit the front of the be employed.

.I claim a I 1. A portable kinematographic camera adapted'to be held byan operator and controlled by the hands, comprising a casing,kinematographic mechanism including a shaft mounted in the casing; amotor for operatin the shaft, a reservoir for carrying motive fluid foroperating the motor, a pressure regulator interposed betweenthereservoir and'the motor, to maintain a constant and uniform 'sourceof energy to the motor, and a finger. operated stopping and startingdevice to control the mechanism.

2.- A portable kinematographic camera adapted to be held by an operatorand controlled by the hands, comprising a casing, kinematographicmechanism including a shaft mounted in the casing, a motor foroperatingthe shaft, a reservoir for carrying motive fluid for operatingthe motor, and a gyroscope located in the casing to steady the camera.

3. A portable 'kinematographi'c camera adapted to be held by an operatorand controlled by the hands, comprising a casing, kinematographic'mechanism including a shutter, a gyroscope including a shaft and diskoperating in conjunction with theshutter, a motor for operating thekinematographic mechanism, means carried in the casing for storingenergy to operate the motor, and a finger operated device on the casingforstopping and starting the motor.

4:. A portable kinematographic camera adapted to be held by an operatorand con- .trolledby the hands, compr sing a casing,

klnematographic mechanism, a motor in the casing for operating thekinematographic mechanism, a reservoir for carrying motive fluid foroperating the motor, means for. governing the speed of the motor, andmeans to start the kinematographic mechanism.

5. A portable kinematographic camera adapted to be held by an operatorand controlled by the hands, comprising a casing,

kinemat-ographic mechanism including a shaft and a shutter, a gyroscopedisposed in the casing the axis of which is parallel to the shaft and tothe axis of the shutter,?" a motor for operating the shutter andgyroscope, an air reservoir carrying compressed air for operating themotor, a pressure regulator interposed between themotor and thereservoir to maintain a constant and uniform source of energy to themotor and means for starting and stopping the motor.

6. A portablekinematographic camera adapted to be held by an operatorand controlled by the hands comprising a casing, a partition in thecasing to form two com partments, reels mounted in one compartwhich afilm is directed to the kinematographic mechanism, a motor and source ofenergy for operating the latter in the second mentioned compartment,a-gyroscope disposed in the front portion of the casing, means betweenthe motor, kinematographic mechanism and the gyroscope for operatingsaid mechanism and gyroscope and means for stopping and starting themotor.

7. ,A portable kinematographic camera adapted to be held by an operatorand con? trolled by the hands, comprising a casing, kinematographicmechanism in the casing, a fluid motor 1n the casing for operating thekinematographic mechanism, means including a motive fluid reservoircarried by the casing for operating the motor; means for controlling thespeed of the motor, and means for stopping and starting the motor.

8. A portable kinematographic camera adapted to be held by an operatorand controlled by the hands, comprising a casing, kinematographicmechanism in the casing, a gyroscope cooperating with thekinematographic mechanism, a motor in the casing for operating thekinematographic mechanism and the gyroscope, means carried by the casingfor operating the motor, means, for controlling the speed of the motor,and

means for stopping and starting the motor.

9. A portable kinematographic camera adapted to be held by an operatorand controlled by the hands, comprising a casing, kinematographicmechanism in the casing, a gyroscope cooperating-with thekinematographic mechanism and located in the for.- Ward end of thecasing, means for operating the kinematographic mechanism and thegyroscope, and means for stopping and starting the motor. T

10. A portable kinematographic camera adapted to be held by an operatorand controlled by the hands, comprising' a casing, kinematographicmechanism mounted in the casing, a fluid motor in the casing,connectionsbetween the fluid motor and the kine matographic mechanismfor operating the latter, a portable source of power carried by theoperator and connected with the fluid motor for operating the latter,means for maintaining a constant and uniform source of energy to themotor and stopping and starting means adapted to be controlled by thehands of the operator during any movement of the camera whilephotographing a subject.

11. A portable kinematographic camera adapted to be held by an operatorand con-' trolled by the hands comprising a casing, kinematographicmechanism including a rotating shutter mounted in the casing, means foroperating the kinematographic mecha-' nism and a gyroscope located inthe forward part of the casing, the 'axis of the gyroscope and the axisof the'shutter being parallel.

12. A kinematographic camera comprising a casing, kinematographicmechanism in the casing, a gyroscope to steady the movement of thecamera, and means including a motor for operating the mechanism.-

13. A kinematographic camera comprising a casing, kinematographicmechanism mounted in the casing, a gyros cope in the caslng, and aslngle motor 1n the oaslng for operating the klnematographio mechanlsmand the gyroscope.

trolled by the hands comprising a casingkinematographic mechanisminclmiing a shutter 15 mounted in the casing, means independent of themotor for steadying the movement of the camera While photographing asubject, and means including a motor for operating the mechanism. 7

In testimony whereof I have hereunto set my hand in presence of twowitnesses.

CASIMIR DE PRUSZYNSKI. Witnesses:

GYRILL SUDWIOKI, ANDRZEJ KUGWEJ.

